Welcome to PhysicsOverflow! PhysicsOverflow is an open platform for community peer review and graduate-level Physics discussion.
Please help promote PhysicsOverflow ads elsewhere if you like it.
Migration to Bielefeld University was successful!
Please vote for this year's PhysicsOverflow ads!
Please do help out in categorising submissions. Submit a paper to PhysicsOverflow!
... see more
(propose a free ad)
In polchinski's first course on string, with
how to deduce
This post imported from StackExchange Physics at 2014-03-11 07:56 (UCT), posted by SE-user Zhao. zhanliang
Related post physics.stackexchange.com/q/73393
This post imported from StackExchange Physics at 2014-03-11 07:56 (UCT), posted by SE-user user26143
user contributions licensed under cc by-sa 3.0 with attribution required